Sawing machine



March 15, 1932. w, 5, 5 T 1,849,439

SAWING MACHINE Filed July 10, 1951 3 Sheets-Sheet l March 15, 19 w. 5. SMITH SAWING MACHINE Filed July 10, 1931 3 Sheets-Sheet March 15,1932. w WH 1,849,439

SAWINr MACHINE Filed July 10, 1931 3 Sheets-Sheet 5 ITTOIPNEY Patented Mar. 15, 1932 UNITEDSTATES PA WILLIAMS. SMITH,- or PORT MoonY, BRITISH COLUMBIA, CANADA, AssIe von To THE ROBERT McNAIR SHING-LE 00. ran, orvAncoUvER, BRITISH COLUMBIA, un mpa-v U sAwINe 114cm Application filed July 10,

7 the shakes are finally positioned before the splitting saw, a true vertical edge is presented to the sawwhereby the shake is' sawn in two equal halves, eachhaving two parallel edges where the saw enters and leaves the shake.

Y The sawing machine herein describedis evolved to carry out the preliminaryproc- 'essmore particularly described in United States Patent No. 1,763,269.-

-A particular object of the invention has been to design a simple and sturdy-pieceiof mechanism that requires no particularskill to operate, that is safe, andwill do thework with the requisite speed for commercial op.- erations. I q

The particular function of the-machine is to prepare the shakes for final splitting into two perfect sawn shakes whereby lumber is conserved and waste eliminated. v.tWith the object ofmaking clear this particular saving of lumber it is to be noted that in the manufacture of shingle shakes, .the shakes are cut from a single hand split shake, which hand split-shake is split froma block of wood by" a frow, and this'frow end ofthe shake is generally of even thickness, but" the opposite end of-theshake is liable to'develop unequal thickness andirregularities by reason of wind in the grain, and, it is this particular wind: and irregularity of the grain that is responsible for wastejin the manufacture of shake shingles'if not rectified.

This particular condition is better'illustrated bythe drawings accompanying and forming part of this :application and in which: 7

Figure 1 is a perspective view of a shake preparatory to re-sawing and showing the irregularity of the contour by which wastage is caused.

Figure 2 is an end view of the same looking at the end opposite to that where the frow is applied in splitting the shake, i. e., looking from right to left in Figure 1.

Figure 3 is ,a perspective view of the same shake but with the diagonal saw out dividing the shake into two shingle shakes wherein it 1931. 'Serial at. 550,007.

is seen that because of the irregular contour the top surface at an irregular line and age of the top shinglesha'ke occurs.

Figure 4 1s a perspective view or the same shake shown in Figure 1. after, being passed through my preliminary sawing machine and TENT FICE having the irregular contoured end removed. 4

Figure 5lis a plan viewof the sawing ma- Q Figure 6 1s anelevatlon of the sawing ma-- chine.

chine, and shows slots in the guide board for sliding member, also adjustable saw -table.' Figure 7 is a" detail viewof one corner of the machine showing pivot" mounting to which the guide board is secured.

Figure 8 is anlend view of the machine with guide board and pivotal member removed to more clearly show saw arbor.

Figure 9 is a detail ofthe opposite corner ofth'e machine to thatshown in Figure 7 and shows the adjustable angle 'member to' the back of the guide board by which adjustment of the saw cut is made; f g f Figure '10 isa sectional planof theguide board taken on thefline 101 O of Figure 11 showing slide member fixed to the board and showing T-shaped distance piecein slide.

' Figure 11 is a front 'elevationof the 'slide member secured in guide board. H q

Figure 12 is an enlarged sectional end elevation and detail'of the slidemember taken on the line 1212 ofFigure 11. 1

In these drawings like numerals indicate likeparts and the numeral 1 indicates the one of the slots of the sawing machine generally, 2 thesaw arbor,f3 J

the bearings, 4 the drive pulley, and 5 the saw, 6 the saw table, and'7 the guide board positioned back ofth'esaw andoutside of the saw frame '8. The guide board 7 e is supportedat one endby the pivot mounting 9 V bolted upon the top of the frame 8 and is made adjustable at the opposite end through theangle brackets 10 and the-slotted base 11 thereof secured'bythe'wing nuts 12.

A similar bracket for stiffening the guide board is positioned intermediate 'the'fend bracket and the pivot'joint9; The saw table 6 is made adjustable for ice slide member'17 in the slots 16.

with the longitudinal slots 16 for-a slide membcr 17'to operate in. V

The'slide member 17 comprises three sep arate pieces 18, 19 and 20, as shown in Figure 12, and held together by the bolts 21 and the piece is merely a securing member fitting the back of the guide board to hold the The centre member 19 comprising the slide is T-shaped in section and made to fit the slot 16 freely while the vertical portion shown .inaFigure 12 is in effect a distance pieceto hold one end of the shake, being sawn a sufficient distance from the guide board so that theopposite end of the shake is angularly disposed toward the saw, see Figure 10.

The outer piece 18 of the slide member has a recess 22 cut in the corner facing the saw in which the end of a shake maybe positioned for-sawing.

A pivoted handle member 23 is secured upon the bolt24c and serves as a .clampto hold the shake in the recess 22 while the sha e is being traversed up against the saw.-

Slots 25 are cut in the end of the outer piece 18 as shown in Figure 11 to permit of move-- ment-and mounting of the handle member In use, shakes requiring trimming are positioned under the handle 23 of the slide mem ber 17 and assume the position, as shown in Figure 10, with the end corner of the shake nearest the saw contacting the face of the guide board 7 and in this position are fed into the saiw. a

The saw being positioned closely to the guide board removes a small angular corner from the shake and leaves the shake in the condition shown in Figure 4 and ready for the splitting saw. I

By this preliminary treatment of the shakes before splitting or re-sawing of them much lumber isconservedand waste eliminated as it is impossible for. the splitting saw to run out upon an uneven surface, as shown inFigure 3, and thereby make a cull shake. "Having now described my invention, what I claim as new and desireto be protected in by Letters Patent, is r 1. In a sawing machine of the kind described having aframewo-rk and bearings and saw arbor and pulley mounted thereon together with power driving means,the combination comprising a saw secured to one end of said arbor whereby said saw overhangs and saw arbor and pulley mounted thereon together with power driving means, the combination comprising a saw secured to one end of said arborwhereby said saw overhangs the side of said frame, a table secured to the side of'said frame, a sl'ot inf-said table for the saw to operate therethrough, a' pivoted guide member positioned; alongside said saw and intermediate said frame. and saw, and

means for adjusting said pivoted guide :to

and from said saw, said means comprising angle members secured on-the back of, said guide member, said angle members havinga s'lotted'base and holding down-bolt andwing nut, whereby said angle members and one end of said guide member maybe moved to and from said saw toa'djustfthe cut of said saw, and means. for traversing a board alongside said pivoted guide member.

' 3; Ina/sawing machine of the kind de:- 1

scribed having a framework and bearings and saw arbor and pulley mounted thereon together with power driving means, the combination comprising a saw secured to one end of'said arbor whereby said saw overhangs the side of said frame, atable secured to the side of said frame, a slot in lsaidita'ble for the saw to operate therethrough, a pivoted guide member positioned alongside said saw and intermediate of said frame and saw, and i means for adjusting said pivoted guide to and from said saw, and means for traversing a board alongside said pivoted guide member, said means comprising longitudinal slots formed in the side of said guide member to 1 1 form a slideway, a slide member fitting said slots, said slide member having a distance piece on one face thereof, a pivoted handle vfitting said slide member to form :a clamp whereby the end of a board may be secured und'er'said clamp and between said distance piece for traversing the opposite end of said board through said saw. I

In testimony whereof I a-ffix my signature.

' WILLIAM S. SMITH. 

